The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 2017
Filed:
Oct. 30, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Seong Kyun Kang, Daejeon, KR;
Hyun Ju Cho, Daejeon, KR;
Sung-Kyoung Kim, Daejeon, KR;
Jong Won Lee, Daejeon, KR;
Seung Young Park, Daejeon, KR;
Hyeon Choi, Daejeon, KR;
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 64/34 (2006.01); B01J 31/12 (2006.01); C08G 64/02 (2006.01); C07C 51/41 (2006.01);
U.S. Cl.
CPC ...
C08G 64/34 (2013.01); B01J 31/12 (2013.01); C08G 64/0208 (2013.01);
Abstract
An organic zinc catalyst and a preparation method thereof are provided. According to the present invention, the organic zinc catalyst has a smaller thickness and a larger surface area to exhibit more improved activity in polymerization for the preparation of a poly(alkylene carbonate) resin.